Grate.



No. 700,6l8. Patented May 20, I902.

C. T. CUE.

GBATE.

(Application filed Aug. 9, 1901.) (No Model.) 2 Sheets-Sheet I;

WIT EssEs. 4 s INVENTEIR' W H W BY 4% ATTORNEY.

in: Noam PETER: co.. vnoro-ufnm, WASHINGTON p. c.

- Patented May 20, I902.

No. 700,6l8.

C. T. 00E.

GBATE. (Application filed. Aug. 9, 1901.) (no Model.) 2 Sheets-Sheet 2.

WI'NESSES I I I 7 INVENTIJR Mme/k. o7.

W/ /M' MM ATTURNEY.

Tm: ionms mum, wuoYauYk'a. msnmurbn, u c. 7

CHARLES T. con, on NEW YORK, N. Y.

- G RATE.

SPECIFICATION forming part of Letters Application filed August 9 1901.

To all 2072 0717, it may concern.-

Be it known that I, CHARLES T. COE, a citizen of the United States, and a resident of New York, in the county of New York and State of New York, have made and invented certain new and useful Improvements in Grates, of which the following is a specification.

My invention relates to an improvement in furnace-grates; the objectof the same being to provide a device of this character which shall be cheap to construct, strong and durable in use, and which may be efiectively shaken.

A further object of the invention is to so construct and arrange the parts that the several sections may be easily and readily removed and others substituted when necessary, either by reason of the burning out of said sections or'when desired to adapt the same for burning a different size of coal-th at is, either 'frorn'a larger to a smaller size, or vice versa. v v

A further object of my invention is to so construct and arrange the several parts of the grate that the least obstruction possible will be offered to the'draft or current of air passing through the same and also that in the operation of shaking a chopping motion will be effected, whereby the clinkers will be broken up or reduced in size to facilitate their passage through-and outof the grate and also whereby the under orburned-out' portions of the fire-bed may be removed or separated from the upper or bright portions of the bed without necessarily disturbing the latter.

With these andotherends' in view my invention consists in certain novel features of construction and combinations of parts, as will be hereinafter fully described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a plan View of my improved grate, one portion of thesame showing the sections provided with plain elongatedslots or openings and the remaining sections with slots and staggered openings, several of the sections being removed from one of the rocking frames. Fig. 2 .is asectional view taken on the line 2 2 of Fig. 1, the rear portion of the grate being shown in its tilted position. Fig. 8 is a sectional view taken through one of the seam. No. 700,618, dated May 20, 1902.

SerialNo. 71,424. (No modelJ sections and part of the rocking frame. Fig. 4 is a perspective view of one of the rocking frames, the sections being removed therefrom. Fig. 5 is a similar view of one of the leaves or sections.

Referring to the drawings, A represents the frame or support for the grate and is built in the usual way on the inside of the furnacewall, (not shown,) the front and rear ends a of the frame being preferably toothed or serrated, as shown, to assist the free circulation of air through the grate. In the side pieces of the frame A are supported the transverse rocking frames 13, each constructed as illustrated in Fig. 4, for receiving and supporting the leaves or sections 0. The rocking frames each consist of the two parallel supportingbars I) c, on which rest the edges of the leaves or sections 0, as illustrated in Fig. 2. With these supporting-bars are cast integral the division-plates 01, extending slightly above said bars and slightly rounded or curved on their upper edges to conform to the shape of the face or upper side of the leaves or sections 0, the end plates efbeing provided with a lug or projection g to act as bearings or supports for the rocking frame and adapted to fit into recessesformed in the sides of the frame A. Running parallel with the supporting-bars b c and connecting the division-plates d and end plates efis the strengthening flange or plate it, this plate or web having its greatest depth or width at about the center of its length in order that it may impart to the rocking frame the greatest strength where such is needed--thatis,'abont midway between the ends thereof'-and thereby overcome any and all danger of sagging due to the weight imposed upon' it. This rocking frame, constructed and arranged as above described, is preferably cast in one piece, and, as will be seen by reference to the drawings, is of such shape and design that it offers but little or no obstruction to the free circulation of the air or draft through it, the bars and plates presenting their edges and not their-sides to the flow or current of the air. Upon this rocking frame and between the division-plates are supported the leaves or sections 0, each leaf or section being cast in one piece and consisting of the parallel plates t, having openings or spaces between them and joined totoo gether by the ribs 70, the openings providing for the passage of the air, the end plates 2' each having a lug or projection Z, adapted to fit into recesses 17?, formed in the divisionplates (Z of the rocking frame, to assist in supporting said leaves or sections in place within said rocking frame. It will be noticed that the upper edges or faces of the plates 2' of which the leaves or sections are formed are slightly thickened or broadened to impart a suflieient amount of strength thereto and to prevent the smaller sizes of coal from falling through between them, these upper edges of the plates being left plain or provided with staggered openings or recesses n to provide a greater space or vent for the air passing through the grate. By thus constructing the rocking frames and leaves or sections it will beunderstood that the latter may be easily and readily removed in case it becomes necessary to substitute a new section for one burned out or in the case where it is desired to change or adapt the grate to burn a larger or smaller size of coal. Further, it will be seen that the edges of the plates forming both the rocking frames and leaves present their edges in the direction of the flow or current of air, and thereby offer but little obstruction thereto. It will be further noticed by reference to the drawings that the lugs or projections g, formed on or secured to the end plates cf of the rocking frame, are located to one side of the center of said plates, the effect being to give to the forward edges of the leaves a slightly-greater movement than the rear edges, the result being that the forward edge of one leaf or section will, in conjunction with the rear edge of the adjacent section, operate to better crush the clinkers and separate the lower portion of the fire-bed from the upper portion than in the case where both the forward and rear edges move to the same extent, which latter would be the case were the rocking frames hung or pivoted at the center of their ends.

In order to effect a proper shaking of the grate, the end plates 0 of the rocking frames arecontinued downwardly to form vertical arms 0, the extreme lower ends of which are provided with the lugs or projections 19, to which latter are secured the rods D,which in turn are secured to the connecting-rods E.

The forward ends of these rods E are secured to the lower ends of the levers F, fulcrumed atf to the plate 9', the latter being secured to the front plate or wall it, this arrangement of the parts allowing the forward and rear portions of the grate to be shaken separately or simultaneously.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a grate, the combination with a supporting-frame, of rocking frames mounted in said supporting-frames, and each consisting of supporting-bars, division -plates, and a strengthening-web connecting said divisionplates, leaves or sections mounted on said rocking frame and between said divisionplates, and means for rocking said frames, substantially as described.

2. In a grate, the combination with a supporting-frame, of rocking frames mountedin said supporting-frame and each consisting of supporting-bars, division-plates, and a strengthening web or plate connecting said division-plates, and leaves or sections mounted in said rocking frames and between said division-plates, said leaves having their edges resting upon the supporting-bars of said rocking frame and provided with lugs or projections fitting in recesses formed in said divi sion-plates, substantially as described.

3. In a grate, the combination with a rocking frame, said frame consisting of longitudinal parallel supporting-bars, division-plates cast integral with said bars, and provided with recesses, and a strengthening plate or web connecting the lower edges of said division-plates, the end plates of said rocking frame being provided with eccentric lugs or projections forming bearings for said frame, of leaves or sections, adapted to fit in said frame and on said supporting-bars, and pro vided with lugs or projections on their ends to fit in said recesses in said division-plates, substantially as described.

Signed at New York, in the county of New York and State of New York, this 7th day of August, A. D. 1901.

' CHARLES T. 00E. Witnesses:

GEORGE (100K, M. VAN NORTWICK. 

